info specific to hood.math

Administration

• hood.math is administered by MFCF
• no root or sudo access for users
• home directories on hood are served by NFS to winisk, kazan, and thelon

Hardware

• SuperMicro 8047R-7JRFT
• Four Intel Xeon E5-4640 8-core 2.4 GHz CPUs (Sandy Bridge microarchitecture)
• 256 GiB RAM

Software

• Hood currently runs CentOS 6.7
• GCC 4.4.7 installed by default
• GCC 4.7.2 is also available, to use it, do one of the following:

1. Use SCL (Software Collection) to start a subshell with special environment, e.g.

scl enable devtoolset-1.1 bash

or if you prefer a CSH shell

scl enable devtoolset-1.1 csh

2. Set environment variables to refer to the optional versions, e.g.

export CC=/opt/centos/devtoolset-1.1/root/usr/bin/gcc

3. Set your $PATH to find the optional commands first, e.g.

export PATH=`showpath /opt/centos/devtoolset-1.1/root/usr/bin current`

• Intel Parallel Studio XE 2015 development suite (icc, ifort, MKL, etc.)
  • run the command source /opt/intel/bin/iccvars.sh intel64 (if you use bash login shell) or source /opt/intel/bin/iccvars.csh (if you use csh or tcsh login shell) to set up your environment for this

• OpenMPI
  • we don't have Intel's MPI
  • there are three versions of OpenMPI installed
    • OpenMPI 1.8.1, from the OS, in a "module" called openmpi-1.8-x86_64
    • OpenMPI 1.8.4, built on hood using Intel compiler, installed in /usr/local/
    • OpenMPI 1.10, from the OS, in a "module" called openmpi-1.10-x86_64
  • run the command module load openmpi-1.10-x86_64 to set up your environment for OpenMPI 1.10
  • the hood.sh set-up file in SPINS expects your environment to be set up to use Intel compilers, Intel MKL, and OpenMPI 1.10
    • see the wiki page called Login Script for details of that